岩石边坡生态工程中土层变化规律及防护措施探讨  

Change of Soil Layers and Soil Conservation in Rocky Slope Ecological Protection Engineering

作　　者：叶建军[1] 许文年[2] 

机构地区：[1]襄樊学院建筑工程学院,湖北襄樊441053 [2]三峡大学防灾减灾研究院,湖北宜昌443002

出　　处：《水土保持通报》2009年第6期136-139,143,共5页Bulletin of Soil and Water Conservation

基　　金：国家自然科学基金项目(50879043);国家科技攻关项目(2006BAC10B04)

摘　　要：出于景观改善的需要和生态恢复的要求,一些工程形成的岩石边坡需要进行生态恢复。在总结岩石边(斜)坡生态防护方法的基础上,对喷射护坡绿化技术中喷射土层的土壤变化规律进行了探讨。运用物质平衡等原理,建立了边(斜)坡土壤物质平衡不等式,分析了边(斜)坡土壤平衡的所有因素并绘制了生态恢复成功和不成功时边(斜)坡土壤变化规律图,得出了水力侵蚀、地质灾害损失和初始喷层厚度是岩石边坡土层保持的关键因素。最后,提出了保证岩石边(斜)坡生态防护(恢复)工程成功的一些措施。To meet the environmental and scenic demands, some rocky slopes in civil engineering need some works on ecosystem restoration. Firstly, the present methods in rocky slope ecological protection engineering are summarized. Then, the changes of gunning （or gunniting） soil layer in rocky slope ecological protection engineering projects are investigated. By using the principle of mass balance and the multi-subject knowl- edge, an inequality for the mass balance of the gunning soil layer on rocky slope is set up, all the factors in the inequality are analyzed, and the figures on the changes of gunning soil layer on rocky slope under differ- ent situations are presented. It is found that water erosion, landslip loss, and initial thickness of gunning soil layer are the key factors of soil conservation. Based on the above fact, some measures on how to guarantee the success in rocky slope ecological protection engineering projects are discussed. This paper may help the practice of rocky slope ecological protection engineering projects in the future.

关 键 词：岩石边(斜)坡 生态恢复 土层 变化规律 保持 

分 类 号：S157[农业科学—土壤学] P642.22[农业科学—农业基础科学]